Towards a shorter calving interval in South African dairy herds

Van Zyl, J.G.; Horn-Quass, J.G.; Ross, A.G.; Van Zyl, J.G; Horn-Quass, J.G; Ross, A.G

Home

>

Node

>

Subnode

Towards a shorter calving interval in South African dairy herds

Van Zyl, J.G.; Horn-Quass, J.G.; Ross, A.G.

Journal of the South African Veterinary Association 65(4): 170-172

1994

ISSN/ISBN: 1019-9128

PMID: 7602571

Document Number: 428549

The effects of a progestagen treatment regimen on the calving-to-conception period and number of inseminations per conception in a Holstein-Friesland herd [n = 60] were investigated. No significant (P > 0.05) differences were observed in days from calving to conception (80.5 vs. 82.3) and inseminations per conception (1.52 vs. 1.41) between the treatment and the control groups, although the treatment possibly contributed to an improved oestrus detection rate.